https://learn.microsoft.com/en-us/powershell/module/az.resources/move-azresource?view=azps-15.6.0&viewFallbackFrom=azps-15.4.0
Move-AzResource (Az.Resources) | Microsoft Learn
The Move-AzResource cmdlet moves existing resources to a different resource group. That resource group can be in a different subscription.
moveazresourcesmicrosoftlearn